131907318 has 32 divisors (see below), whose sum is σ = 281146464. Its totient is φ = 41114112.

The previous prime is 131907317. The next prime is 131907343. The reversal of 131907318 is 813709131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131907317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11896 + ... + 20132.

It is an arithmetic number, because the mean of its divisors is an integer number (8785827).

Almost surely, 2^131907318 is an apocalyptic number.

131907318 is an abundant number, since it is smaller than the sum of its proper divisors (149239146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131907318 is a wasteful number, since it uses less digits than its factorization.

131907318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8416.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 131907318 is about 11485.0911184892. The cubic root of 131907318 is about 509.0451414657.

The spelling of 131907318 in words is "one hundred thirty-one million, nine hundred seven thousand, three hundred eighteen".